The LEDs are super bright SMDs on custom programmable modules called "megabrites" from macetech.com. In theory, they won't run 300mA the whole night, since they're doing PWM, and most of the time idle at around 100mA.

What about the 6V batteries and 12V charge controllers? The modules require 6-9V; I'm worried about burning out the voltage regulators if I have to use 12V directly.

Also: Wow, nice active list. This is also my first burn, so I'm kinda throwing myself into it.